CDM 07-MAR-2018¶

- [yehuda] rgw: bucket ops log via sync module
- [sage] pg merging update
- [sage] config history ... http://pad.ceph.com/p/config-history
- [kefu] update on seastar changes - http://pad.ceph.com/p/updates-on-seastar
- [mynaramana] update on clay codes